Prefix Information

The prefix 661 is part of area code 415 serving San Francisco, California.

This exchange contains 10,000 possible phone numbers (415-661-0000 through 415-661-9999).

Browse Numbers in This Prefix

415-661-0000-0999 415-661-1000-1999 415-661-2000-2999 415-661-3000-3999 415-661-4000-4999 415-661-5000-5999 415-661-6000-6999 415-661-7000-7999 415-661-8000-8999 415-661-9000-9999

Sample Numbers

(415) 661-0000 (415) 661-1234 (415) 661-2000 (415) 661-3333 (415) 661-4444 (415) 661-5555 (415) 661-6000 (415) 661-7777 (415) 661-8888 (415) 661-9999